package com.atguigu.gulimall.authserver.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.common.vo.MemeberResponseVo;
import com.atguigu.gulimall.authserver.service.MemberFeignService;
import com.atguigu.gulimall.authserver.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * @author 860620068
 * @Date 2021/6/10 :15:59
 * @desceiption: 处理社交登录请求
*/

@Slf4j
@Controller
public class OAuth2Controller {
    @Autowired
    private MemberFeignService memberFeignService;

    public String weibo(@RequestParam("code") String code, HttpSession session) throws Exception {
        Map<String,String> map = new HashMap<>();
        map.put("client_id","2077705774");
        map.put("client_secret","40af02bd1c7e435ba6a6e9cd3bf799fd");
        map.put("grant_type","authorization_code");
        map.put("redirect_uri","http://auth.gulimall.com/oauth2.0/weibo/success");
        map.put("code",code);

        //1.根据用户授权返回的code换取access_token
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com","/oauth2/access_token","post",new HashMap<>(),map,new HashMap<>());

        //2.处理
        if(response.getStatusLine().getStatusCode() == 200){
            //获取到了 access_token,转为通用社交登录对象
            String json = EntityUtils.toString(response.getEntity());
            //String json = JSON.toJSONString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json,SocialUser.class);

            //知道了哪些社交用户
            //1)、当前用户如果是第一次进网站，自动注册进来（为当前社交用户生成一个会员信息，以后这个社交账号就指定对应的会员）
            //登录或者注册这个社交用户
            System.out.println(socialUser.getAccess_token());
            //调用远程服务
            R oauthLogin = memberFeignService.oauthLogin(socialUser);
            if(oauthLogin.getCode() ==0){
                MemeberResponseVo data = oauthLogin.getData("data", new TypeReference<MemeberResponseVo>(){});
                log.info("登录成功：用户信息:{}",data.toString());

                //1.第一次使用session,命令浏览器保存卡号，JSESSIONID这个cookie
                //以后浏览器访问哪个网站就会带上这个网站的cookie
                //TODO 1.默认发的令牌。当前域（解决子域session共享问题）
                //TODO 2.使用JSON的序列化方式来序列化对象到Redis中
                session.setAttribute(AuthServerConstant.LOGIN_USER,data);

                //2.登录成功调回首页
                return "redirect:http://gulimall.com";
            }else {
                return "redirect:http://auth.gulimall.com/login.html";
            }
        }else {
            return "redirect:http://auth.gulimall.com/login.html";
        }

    }
}




























